File 0001-always-create-window-for-each-screen.patch of Package sddm

From 053765ac7a1800a3e1e8efc2cdef5fc696ea01af Mon Sep 17 00:00:00 2001
From: Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
Date: Thu, 15 Oct 2015 12:44:47 +0200
Subject: [PATCH] Always create a window for each screen

Clone mode is something that should be dealt with xrandr from a
custom Xsetup script, depending on user configuration.

What we want here is to always create a window for each screen
otherwise we might end up having the greeter only on the primary screen.

Also, set window geometry to the whole screen geometry like we do
for the screen model.
---
 src/greeter/GreeterApp.cpp  | 13 ++++++-------
 src/greeter/ScreenModel.cpp |  4 ----
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/src/greeter/GreeterApp.cpp b/src/greeter/GreeterApp.cpp
index 59a48a0..3a7db27 100644
--- a/src/greeter/GreeterApp.cpp
+++ b/src/greeter/GreeterApp.cpp
@@ -130,7 +130,8 @@ namespace SDDM {
         m_proxy->setSessionModel(m_sessionModel);
 
         // create views
-        Q_FOREACH (QScreen *screen, screens())
+        QList<QScreen *> screens = primaryScreen()->virtualSiblings();
+        Q_FOREACH (QScreen *screen, screens)
             addViewForScreen(screen);
 
         // handle screens
@@ -138,15 +139,12 @@ namespace SDDM {
     }
 
     void GreeterApp::addViewForScreen(QScreen *screen) {
-        // heuristic to detect clone mode, in that case only add a view for the primary screen
-        if (screen->virtualGeometry() == primaryScreen()->geometry() && screen != primaryScreen())
-            return;
-
         // create view
         QQuickView *view = new QQuickView();
         view->setScreen(screen);
         view->setResizeMode(QQuickView::SizeRootObjectToView);
-        view->setGeometry(QRect(QPoint(0, 0), screen->availableGeometry().size()));
+        //view->setGeometry(QRect(QPoint(0, 0), screen->geometry().size()));
+        view->setGeometry(screen->geometry());
 
         // remove the view when the screen is removed, but we
         // need to be careful here since Qt will move the view to
@@ -165,7 +163,7 @@ namespace SDDM {
 
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 4, 0))
         // always resize when the screen geometry changes
-        connect(screen, &QScreen::availableGeometryChanged, this, [view](const QRect &r) {
+        connect(screen, &QScreen::geometryChanged, this, [view](const QRect &r) {
             view->setGeometry(r);
         });
 #endif
@@ -190,6 +188,7 @@ namespace SDDM {
         view->setSource(QUrl::fromLocalFile(mainScript));
 
         // show
+        qDebug() << "Adding view for" << screen->name() << screen->geometry();
         view->show();
     }
 
diff --git a/src/greeter/ScreenModel.cpp b/src/greeter/ScreenModel.cpp
index 392bf4c..a49f31d 100644
--- a/src/greeter/ScreenModel.cpp
+++ b/src/greeter/ScreenModel.cpp
@@ -120,13 +120,9 @@ namespace SDDM {
         return;
 #endif
 
-        QScreen *primaryScreen = QGuiApplication::primaryScreen();
         QList<QScreen *> screens = QGuiApplication::screens();
         for (int i = 0; i < screens.size(); ++i) {
             QScreen *screen = screens.at(i);
-            // heuristic to detect clone mode, in that case only consider the primary screen
-            if (screen->virtualGeometry() == primaryScreen->geometry() && screen != primaryScreen)
-                continue;
             // add to the screens list
             d->screens << ScreenPtr { new Screen { QStringLiteral("Screen %1").arg(i + 1), screen->geometry() } };
             // extend available geometry